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Injection molded parts
Manufacture high volumes of strong, durable plastic injection molded parts with consistent quality.
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Order custom plastic injection molded parts
Ideal for high volume production requirements, the injection molding process enables manufacturers to create consistent high quality parts quickly. During production, molten thermoplastic pellets are injected into a metal mold, cooled, and ejected as a fully formed part ready for industrial end-use.
Ordering injection molded parts from Fast Radius is simple: upload your design to our Cloud Manufacturing Platform™, work with our engineers to optimize your project, and then begin production when you’re ready for delivery on-demand.
Explore our full range of injection molding manufacturing capabilities, including multi-cavity molding, insert molding and overmolding services.
Our injection molding capabilities
We offer the following injection molding services:
Insert molding
Insert molding involves the injection of molten thermoplastic around a pre-placed insert to create strong, durable parts quickly and cost-effectively.
Overmolding
Overmolding is an injection molding process in which multiple shots of thermoplastic are injected over or around a substrate to create highly customized parts.
Multi-cavity/family molds
Multi-cavity molds and family molds, enable the production of multiple injection molded parts from a single shot of thermoplastic.
Injection molding applications
Precise, consistent, and cost-effective, injection molding parts serve a variety of industrial applications:
High volume production
Injection molding is ideal for high-volume production runs of identical plastic parts – and becomes more cost-effective with larger orders.
Ergonomic features
Injection molding enables the production of ergonomic design characteristics such as grips, buttons, and knobs.
Customer end-use
Use injection molding to create durable parts for demanding customer end-uses, including scissors, screwdrivers, remote control coverings, and case assemblies.
Aerospace and automotive
Injection molded parts can be manufactured to meet precise tolerance and functionality requirements for applications in the aerospace and automotive industries.
Why choose injection molding for your parts?
Turnaround times
Depending on order specifications, lead times for setting up an injection molding production run can be as low as 2 weeks for sample approval, and 1 week post-sample approval.
Scaling
After initial tooling, the injection molding process allows manufacturers to scale quickly and easily for cost-effective high volume production.
Material choices
Choose from a wide range of thermoplastic materials, offering different qualities, such as strength or biocompatibility, to suit your project’s requirements.
Customization
Tailor your injection molded parts to their specific end-use with finishing and post-processing options including painting, ultrasonic welding, and texturing.
Get a quote for your injection molded parts
Create a Fast Radius account for rapid quotes on parts production.
Design considerations
Optimize your injection molded parts with the following design considerations, and browse production material, finishing, and post-processing options.
General process information
| Maximum part size | 800 x 800 x 400 mm 31.5 x 31.5 x 15.7 in |
| Minimum part size | 1 x 1 x 1 mm 0.04 x 0.04 x 0.04 in |
| Tolerance | Best achievable tolerance: ±0.001″ (0.025mm) Standard: ±0.005″ (0.127mm) For larger part tolerances please contact a Fast Radius engineer |
| Lead time | As low as 2 weeks for T1 samples After T1 sample approval, lead time for < 10,000 parts is as low as 1 week |
| Tool validation | Standard process is to produce a small set of T1 samples for approval before initiating full production |
| Maximum press size | 1600T |
| Minimum order size | 100 parts and $5000 |
| Set-up fee | $500 per mold per order (applies to sample runs after initial T1 samples or engineering changes) |
Tooling information
| Rapid tooling | Molds with steel cavity and core with a shot life of 5,000-10,000 shots Typically machined in 2 weeks |
| Production tooling | Steel tool with shot life up to 1M shots Ability to integrate side-pulls or cam-actions Typically machined in 3 weeks |
| Multi-cavity or family molds | Multiple identical cavities or family of parts machined into a single tool Allows for more parts to be produced per shot, minimizing unit costs |
| Insert molding | Inserts are placed into the mold and molding occurs around them to extend tool life for critical features Allows for inserts such as helicoils to be molded in your design |
| Overmolding | Premade parts are placed into the mold and molded over Allows for multi-material injection molding |
Injection molding materials
| Most common materials | Other supported materials | Additives and fiber |
|---|---|---|
| Acrylonitrile Butadiene Styrene (ABS) | Nylon (PA 6, PA66, PA 12) | UV absorbers |
| Polyethylene (PE) | Polycarbonate/Acrylonitrile Butadiene Styrene (PC/ABS) | Flame retardants |
| Polypropylene (PP) | Polyurethane (PU) | Plasticizers |
| Polycarbonate (PC) | Polymethyl Methacrylate (PMMA/Acrylic) | Colorants |
| High Density Polyethylene (HDPE) | Glass fibers | |
| Low Density Polyethylene (LDPE) | ||
| Polystyrene (PS) | ||
| Polyvinyl chloride (PVC) | ||
| PEEK | ||
| POM (Acetal/Delrin) | ||
| Polyethylene Terephthalate (PET) | ||
| Thermoplastic Elastomer (TPE) | ||
| Thermoplastic Vulcanizate (TPV) | ||
| Polyetherimide (PEI) | ||
| Polysulfone (PSU) | ||
| Inquire for additional options |
Colors, finishing, post-processing
| Colors | Finishing and post-processing options |
|---|---|
| Pantone color matching | Standard SPI finishes (A2-D3) |
| RAL color matching | Mold-tech textures also available |
| Pad printing | |
| Inserts (insert molding) | |
| Light assembly | |
| Protective packaging / film |
Why choose Fast Radius for injection molding?
The factory of the future
The Fast Radius Cloud Manufacturing Platform™ combines digital design technology with cutting-edge expertise to make your projects possible.
Explore injection molding news and industry updates
Find injection molding information and insight on the Fast Radius blog:
Fast Radius manufacturing capabilities
Fast Radius manufacturing solutions serve the needs of businesses across the industrial landscape. Explore our capabilities:
3D printing
Fast, scalable, and cost-effective 3D printing technology for a variety of industrial applications.
CNC machining
Automated CNC turning and 3-axis and 5-axis milling, using rotating drills, end mills, and lathes.
